Low cost laser generating multiple wavelengths

Abstract

In one embodiment, the disclosure relates to an electro-optical device that includes an optical gain chip that includes; a gain material, the gain material having a gain region, the optical gain chip that includes: N gain chip waveguides; a photonic integrated circuit (PIC) that includes a plurality of layers and a plurality of components, wherein the PIC defines M sections; N external laser cavities; P PIC waveguides; and B distributed Bragg reflector (DBR) rings, wherein each of the N external laser cavities is defined by one of the P PIC waveguides and one of the B DBR rings; and N laser cavities, wherein each laser cavity of the N laser cavities comprises one of the N external laser cavities and one of the N gain chip waveguides.

Dependencies are inferred from the claim text.